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BIOD 152 Final Exam ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
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BIOD 152 Final Exam ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
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BIOD 152 Final ExamBy ExamNavigator
, BIOD 152 Final Exam
1. This is a bundle of axons found in the peripheral nervous system.
Answer: Nerve
2. This part of the autonomic system increases digestion.
Answer: Parasympathetic
3. The dorsal root of a nerve contains what type of neurons?
Answer: Sensory (afferent)
4. This part of a neuron conducts nerve impulses away from the cell body.
Answer: -Axon
5. A neuron going to the bicep of the forearm is part of the:
A. central nervous system
B. peripheral nervous system
C. Autonomic system
D. Somatic system
E. A&C
F. B&D
Answer: F. B&D
6. The neuron pictured, below, is best described as:
A. Bipolar
B. Multipolar
C. Unipolar
D. Pseudounipolar
Answer: B. Multipolar
7. True or false: Neurons do not physically touch one another.
Answer: True
8. Describe the synthesis and storage of neurotransmitters.
Answer: The neuron cell body manufactures neurotransmitters, which are stored in secretory
vesicles at theend of axon terminals
9. An efferent neuron carries information:
A. From the central to the peripheral nervous system
B. From the peripheral to the central nervous system
, C. Within the central nervous system
D. Within the peripheral nervous system
Answer: A. From the central to the peripheralnervous system
10. A postsynaptic neuron would be found:
A. before the synapse
B. after the synapse
C. inside the synapse
D. Only in the central nervous system
Answer: B. after the synapse
11. What is the location and function of Satellite cells?
Answer:
Location: peripheralnervous system (PNS)
Function: Regulation of environment of neuron cell bodies
12. A patient's spinal cord was severed in a car accident. Would the patient be expected to
regrow axons in their spinal cord? Why or why not?
Answer: No, only the peripheral system axons are capable of regeneration. The spinal cord is
the centralnervous system
13. Name and describe what is occurring in the neuron cell membrane in section 4 of the
diagram. Include the charge of the membrane during this phase.
Answer: This is phase 4: afterpolarization (hyperpolarization), the potassium gatesare slow to
clse and that results in an undershoot of the potential, the voltage will drop below -70mV and
the return to the restign state beings.
14. At rest, a neuron plasma membrane is:
A. -70 mV
B. +40 mV
C. Hyperpolarized
D. Depolarized
Answer: A. -70 mV
15. Which of the following is false concerning the sodium-potassium pump?
A. it maintains the resting phase of an axon
B. For every three sodium ions pumped out, two potassium ions are pumpedin
C. it must remain in constant operation to maintain the resting state
D. The overall effect is a negative charge on the outside of the membrane
Answer: D.The overall effect is a negative charge on the outside of the membrane
16. True or false: A sensory neuron is signaling the body of extreme pain. Thismeans that the
strength of the action potential is greater than usual. Explainyour reasoning
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